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SPC Day 1 Fire Weather Outlook

SPC Day 1 Fire Weather Outlook

[html]SPC Day 1 Fire Weather Outlook
         
Day 1 Fire Weather Outlook Image

Day 1 Fire Weather Outlook 
NWS Storm Prediction Center Norman OK
0937 AM CST Tue Nov 19 2024

Valid 191700Z - 201200Z

The primary forecast adjustment involved removing portions of
north-central NE/south-central SD from the Elevated risk area due to
recent wetting rainfall over the past 24 hours. Otherwise, the
forecast remains on track across the Plains with wind gusts up to 40
mph and falling dewpoints already being reported this morning.
Forecast details regarding the Plains and the southern CA coast
outlined in the previous discussion (below) remain on track.

..Moore.. 11/19/2024

.PREV DISCUSSION... /ISSUED 1239 AM CST Tue Nov 19 2024/

...Synopsis...
Initially broad cyclonic flow aloft across the West and Plains will
intensify into two strong troughs, one along the West Coast and one
in the Plains. A deep surface low will move from the Upper Midwest
into Canada with a moderately strong anticyclone in the Great Basin
shifting east during the day.

...Southern California...
The offshore pressure gradient is expected to maximize this morning
and then weaken gradually through the day. This being the case, the
strongest winds (20-30 mph, especially in the terrain) will be
offset from the lowest RH during the afternoon (15-25%). Even so, a
few hours of elevated fire weather appear possible, primarily within
the terrain-favored regions.

...Central Plains...
A strong surface pressure gradient will drive winds of 20-25 mph
(with stronger gusts) across parts of South Dakota and Nebraska.
Temperatures will remain quite cool and likely only reach the
mid/upper 40s F. Even so, very dry air will still allow RH to fall
to 20-25% in some areas. Despite many marginal factors, the strength
of the winds may still promote some risk of fire spread in fine
fuels.

...Please see www.spc.noaa.gov/fire for graphic product...


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Source: SPC Day 1 Fire Weather Outlook (http://ht**://www.spc.noaa.gov/products/fire_wx/fwdy1.html)